diff --git a/node_modules/react-native/React/Base/RCTKeyCommands.h b/node_modules/react-native/React/Base/RCTKeyCommands.h
index 983348e..95742f4 100644
--- a/node_modules/react-native/React/Base/RCTKeyCommands.h
+++ b/node_modules/react-native/React/Base/RCTKeyCommands.h
@@ -18,6 +18,12 @@
                       modifierFlags:(UIKeyModifierFlags)flags
                              action:(void (^)(UIKeyCommand *command))block;
 
+- (void)registerKeyCommand:(NSString *)input
+                      modifierFlags:(UIKeyModifierFlags)flags
+               discoverabilityTitle:(NSString *)discoverabilityTitle
+                             action:(void (^)(UIKeyCommand *))block;
+
+
 /**
  * Unregister a single-press keyboard command.
  */
diff --git a/node_modules/react-native/React/Base/RCTKeyCommands.m b/node_modules/react-native/React/Base/RCTKeyCommands.m
index d48ba93..387d551 100644
--- a/node_modules/react-native/React/Base/RCTKeyCommands.m
+++ b/node_modules/react-native/React/Base/RCTKeyCommands.m
@@ -12,8 +12,6 @@
 #import "RCTDefines.h"
 #import "RCTUtils.h"
 
-#if RCT_DEV
-
 @interface RCTKeyCommand : NSObject <NSCopying>
 
 @property (nonatomic, strong) UIKeyCommand *keyCommand;
@@ -115,7 +113,9 @@ - (void)RCT_handleKeyCommand:(UIKeyCommand *)key
   // NOTE: throttle the key handler because on iOS 9 the handleKeyCommand:
   // method gets called repeatedly if the command key is held down.
   static NSTimeInterval lastCommand = 0;
-  if (CACurrentMediaTime() - lastCommand > 0.5) {
+  if (CACurrentMediaTime() - lastCommand > 0.5 ||
+    [key.input isEqualToString:@"UIKeyInputUpArrow"] || // repeat command if is scroll
+    [key.input isEqualToString:@"UIKeyInputDownArrow"]) {
     for (RCTKeyCommand *command in [RCTKeyCommands sharedInstance].commands) {
       if ([command.keyCommand.input isEqualToString:key.input] &&
           command.keyCommand.modifierFlags == key.modifierFlags) {
@@ -178,6 +178,8 @@ - (void)RCT_handleDoublePressKeyCommand:(UIKeyCommand *)key
 
 @end
 
+#if RCT_DEV
+
 @implementation RCTKeyCommands
 
 + (void)initialize
@@ -220,6 +222,23 @@ - (void)registerKeyCommandWithInput:(NSString *)input
   [_commands addObject:keyCommand];
 }
 
+- (void)registerKeyCommand:(NSString *)input
+                      modifierFlags:(UIKeyModifierFlags)flags
+               discoverabilityTitle:(NSString *)discoverabilityTitle
+                             action:(void (^)(UIKeyCommand *))block
+{
+  RCTAssertMainQueue();
+
+  UIKeyCommand *command = [UIKeyCommand keyCommandWithInput:input
+                                              modifierFlags:flags
+                                                     action:@selector(RCT_handleKeyCommand:)
+                                       discoverabilityTitle:discoverabilityTitle];
+
+  RCTKeyCommand *keyCommand = [[RCTKeyCommand alloc] initWithKeyCommand:command block:block];
+  [_commands removeObject:keyCommand];
+  [_commands addObject:keyCommand];
+}
+
 - (void)unregisterKeyCommandWithInput:(NSString *)input modifierFlags:(UIKeyModifierFlags)flags
 {
   RCTAssertMainQueue();
@@ -289,9 +308,48 @@ - (BOOL)isDoublePressKeyCommandRegisteredForInput:(NSString *)input modifierFlag
 
 @implementation RCTKeyCommands
 
++ (void)initialize
+{
+  // swizzle UIResponder
+  RCTSwapInstanceMethods([UIResponder class],
+                         @selector(keyCommands),
+                         @selector(RCT_keyCommands));
+}
+
 + (instancetype)sharedInstance
 {
-  return nil;
+  static RCTKeyCommands *sharedInstance;
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^{
+    sharedInstance = [self new];
+  });
+
+  return sharedInstance;
+}
+
+- (instancetype)init
+{
+  if ((self = [super init])) {
+    _commands = [NSMutableSet new];
+  }
+  return self;
+}
+
+- (void)registerKeyCommand:(NSString *)input
+                      modifierFlags:(UIKeyModifierFlags)flags
+                discoverabilityTitle:(NSString *)discoverabilityTitle
+                              action:(void (^)(UIKeyCommand *))block
+{
+  RCTAssertMainQueue();
+
+  UIKeyCommand *command = [UIKeyCommand keyCommandWithInput:input
+                                              modifierFlags:flags
+                                                      action:@selector(RCT_handleKeyCommand:)
+                                        discoverabilityTitle:discoverabilityTitle];
+
+  RCTKeyCommand *keyCommand = [[RCTKeyCommand alloc] initWithKeyCommand:command block:block];
+  [_commands removeObject:keyCommand];
+  [_commands addObject:keyCommand];
 }
 
 - (void)registerKeyCommandWithInput:(NSString *)input
@@ -302,6 +360,13 @@ - (void)registerKeyCommandWithInput:(NSString *)input
 
 - (void)unregisterKeyCommandWithInput:(NSString *)input modifierFlags:(UIKeyModifierFlags)flags
 {
+  RCTAssertMainQueue();
+  for (RCTKeyCommand *command in _commands.allObjects) {
+    if ([command matchesInput:input flags:flags]) {
+      [_commands removeObject:command];
+      break;
+    }
+  }
 }
 
 - (BOOL)isKeyCommandRegisteredForInput:(NSString *)input modifierFlags:(UIKeyModifierFlags)flags